.rc-md-editor {
  .table-list.wrap {
    // background: yellow;
    position: relative;
    margin: 0 10px;
    box-sizing: border-box;
    .list-item {
      position: absolute;
      top: 0;
      left: 0;
      display: inline-block;    
      width: 20px;
      height: 20px;
      background-color: #e0e0e0; // grey lighten-2
      border-radius: 3px;
      &.active {
        background: #9e9e9e; // grey
      }
    }
  }
}